Power column



FIG. 1 is a three-quarter perspective view of the power column in accordance with a first embodiment of our Design;

FIG. 2 is an elevational view from the left in FIG. 1;

FIG. 3 is an elevational view from the right in FIG. 1;

FIG. 4 is an elevational view in the direction of arrow A in FIG. 1;

FIG. 5 is an elevational view from the opposite side as compared with FIG. 4;

FIG. 6 is a top plan view;

FIG. 7 is a bottom plan view;

FIG. 8 is a three-quarter perspective illustrating a second embodiment of our Design;

FIG. 9 is an elevational view from the left in FIG. 8; the elevational view from the right is the same;

FIG. 10 is an elevational view from the right in FIG. 8; the elevational view from the opposite side is the same;

FIG. 11 is a top plan view; and,

FIG. 12 is a bottom plan view.

The claimed design is shown broken away to indicate indefinite length. 

The ornamental Design for a power column, as shown and described. 